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Creating temporary files in bash
...owever, some systems (busybox ash, for one) limit this randomness more significantly than others
By the way, safe creation of temporary files is important for more than just shell scripting. That's why python has tempfile, perl has File::Temp, ruby has Tempfile, etc…
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IList vs IEnumerable for Collections on Entities
...hat you can add to or remove from.
Typically you'll want to be able to modify an Order by adding or removing OrderLines to it, so you probably want Order.Lines to be an IList<OrderLine>.
Having said that, there are some framework design decisions you should make. For example, should it be po...
How to put more than 1000 values into an Oracle IN clause [duplicate]
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@ocdecio - my tests with Oracle 10g show different (and clearly worse) explain plans for the IN, compared to the JOIN. Personally I'd use the JOIN, and would recommend others to test different approaches to see differences in performance, rather than guess.
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Difference between document.addEventListener and window.addEventListener?
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The document and window are different objects and they have some different events. Using addEventListener() on them listens to events destined for a different object. You should use the one that actually has the event you are interested in.
For exampl...
Count number of occurrences of a given substring in a string
...in the comments, this is the way to do it for non overlapping occurrences. If you need to count overlapping occurrences, you'd better check the answers at: "Python regex find all overlapping matches?", or just check my other answer below.
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How to fix java.net.SocketException: Broken pipe?
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Can you please help me to identify and correct it? Basically, how to confirm the reason and fix?
– Mani
Feb 22 '10 at 10:33
4
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Scala Doubles, and Precision
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this is perfect if you just need to render the value and never use it in subsequent operations. thanks
– Alexander Arendar
Dec 3 '14 at 21:20
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How and why does 'a'['toUpperCase']() in JavaScript work?
...avaScript language. To be sure that member is in the object, simply check, if it is defined:
function callMethod(method) {
return function (obj) {
if (typeof(obj[method]) == 'function') //in that case, check if it is a function
return obj[method](); //and then invoke it
}...
Unresolved external symbol in object files
...larations, but you either:
do not define the functions in your cpp file (if you wrote this code yourself)
do not include the lib/dll file that contains the definitions
A common mistake is that you define a function as a standalone and forget the class selector, e.g. A::, in your .cpp file:
Wro...
nginx error connect to php5-fpm.sock failed (13: Permission denied)
...- sudo service php5-fpm restart or sudo service php7.0-fpm restart
Note: if your webserver runs as user other than www-data, you will need to update the www.conf file accordingly
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